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Finding the Fourth Proportional to 238,685.62, 358,028.89 and 61,193.26

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Solution

The fourth proportional to 238,685.62, 358,028.89 and 61,193.26 is: 91,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,685.62 : 358,028.89 = 61,193.26 : x
  2. Step 2: Convert to fraction form
    238,685.62/358,028.89 = 61,193.26/x
  3. Step 3: Cross multiply
    238,685.62x = 358,028.89 × 61,193.26
  4. Step 4: Simplify right side
    238,685.62x = 21,908,954,953.28
  5. Step 5: Solve for x
    x = 21,908,954,953.28/238,685.62
  6. Step 6: Final answer
    x = 91,790.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.